What is the impact of having a Redundant eNodeB ID in 4G network?

4G LTE
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1

Hello Experts.

What is the impact of having a Redundant eNodeB ID in 4G network?

Thanks!

2

Do you the eNodeB ID itself?

If yes, the each eNodeB has a unique PCI.

3

Yes, I mean the eNodeB ID itself?

I have check and I find that we have 2 eNodeBs configured with same eNodeB ID.

And I would like to know what is the impact on Network Performance.

I guess it will impact the handover performance?

4

Before going to handover, will the network planning allow to have same eNB id?

SON Management will not allow.

5

The vendor is Huawei and I think if the TAC is different, it is allowed.

For me, I would like to know just the impact of this redundant eNodeB id on network performance.

6

Having two eNB in same location with same eNB id with different TAC practically network planning will not allow.

However, if you purposefully do in lab testing like that, there will be conflict in Sctp association failure as Core network has to two same eNB ids.

So 4G - sctp failure-s1ap setup failure and in 5g - ngsetup failure both cause sctp assoc failure.

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7

Thank you so much for this valuable explanation!